GNU bug report logs - #64908
29.1; svg parse failure

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Message #76 received at 64908 <at> debbugs.gnu.org (full text, mbox):

From: Alan Third <alan <at> idiocy.org>
To: David Ponce <da_vid <at> orange.fr>
Cc: Eli Zaretskii <eliz <at> gnu.org>, 64908 <at> debbugs.gnu.org
Subject: Re: bug#64908: 29.1; svg parse failure
Date: Sat, 5 Aug 2023 17:31:31 +0100

[Message part 1 (text/plain, inline)]

On Sat, Aug 05, 2023 at 06:24:43PM +0200, David Ponce wrote:
> 
> Background is white by default.

Thanks.

> Just before call rsvg_handle_get_geometry_for_layer (line 11412 in image.c):
> 
> (gdb) print zero_rect
> $1 = {x = 6.9533474147268633e-310, y = 2.4608421688060808e-319, width = 5.8283471538673388e-315, height = 9.8813129168249309e-323}
> (gdb) print viewbox
> $2 = {x = 6.9533558057749482e-310, y = 6.9533473517748961e-310, width = 1.4821969375237396e-323, height = 3.0586981611317814e-317}
> (gdb) print out_logical_rect
> $3 = {x = 1.2476920383715837e-316, y = 0, width = 0, height = 3.3675983782902914e-317}
> 
> Just after:
> 
> (gdb) print zero_rect
> $4 = {x = 6.9533474147268633e-310, y = 2.4608421688060808e-319, width = 5.8283471538673388e-315, height = 9.8813129168249309e-323}
> (gdb) print viewbox
> $5 = {x = 0, y = 0, width = 0, height = 0}
> (gdb) print out_logical_rect
> $6 = {x = 0, y = 0, width = 0, height = 0}
> (gdb) print $eax
> $7 = 1

Yeah, I see what's going on.

I was under the impression a new struct should always be set to all
zeroes, but evidently not.

Are you getting any build warnings about it being uninitialised?

Anyway, 3rd go at the patch attached.
-- 
Alan Third

[v3-0001-Fix-percentage-sizes-in-SVG-display-bug-64908.patch (text/x-diff, attachment)]

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